以NaCl为造孔剂制备开孔多孔铜的孔隙形貌及压缩性能
Pore Morphology and Compressive Properties of Open-Celled Porous Cu Fabricated by Using NaCl as Pore Former
摘 要
以NaCl颗粒为造孔剂, 采用烧结-脱溶法制备了开孔多孔铜,对其孔隙及压缩性能进行了研究。结果表明: 所得多孔铜的孔隙多为三维贯通开孔网络结构, 孔的形貌与大小均与NaCl颗粒相似; 其弯曲断口呈现典型的韧性断裂特征; 其压缩应力-应变曲线分为明显的弹性区、平台区及致密化区3个区域, 压缩变形遵循逐层坍塌的机制, 具有较好的压缩吸能特性。
烧结-脱溶
NaCl
压缩性能
open-celled porous Cu
sintering-dissolution
NaCl
compressive property
Abstract
Open-celled porous Cu had been fabricated by using NaCl particles as pore former through sintering-dissolution process. The pores and compressive properties were studied. It is shown that the pores of porous Cu had 3d transfixion open-celled network structure. The shape and size of the pores were similar to those of NaCl particulates. The flexural fracture surface exhibited typical ductile rupture characteristics. The compressive stress-strain curves could be distinctly divided into three stages including elasticity, plateau and densification. The layer-by-layer collapse was the predominant deformation mechanism during compression. And the material had better compressive energy abstrption property.
中图分类号 TB31 TB303
所属栏目
基金项目 河北省自然科学基金资助项目(E200900060); 天津市应用基础及前沿技术研究计划重点项目(09ZCJDJC22200)
收稿日期 2010/3/16
修改稿日期 2010/12/27
网络出版日期
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备注王清周(1978-), 男, 山东德州人, 副教授, 博士。
引用该论文: WANG Qing-zhou,LI Nuo,WANG Qian,WU Ai-zhong,CUI Chun-xiang. Pore Morphology and Compressive Properties of Open-Celled Porous Cu Fabricated by Using NaCl as Pore Former[J]. Materials for mechancial engineering, 2011, 35(4): 53～56
王清周,李诺,王倩,吴爱忠,崔春翔. 以NaCl为造孔剂制备开孔多孔铜的孔隙形貌及压缩性能[J]. 机械工程材料, 2011, 35(4): 53～56
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【4】陈文革, 罗启文, 张强, 等.定向凝固技术制备多孔铜及其力学性能[J].机械工程材料, 2007, 31(7): 42-44.
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